What would be the point when we have the PJ Maybe stories?
Well PJ Maybe is just citizen for starters. Sherman was enrolled as a cadet at the Academy of Law, so that puts a completely different slant on things as he presumably got the full eagle , became a judge and enforced the law.What kind of judge would have been an interesting question on it's own -a Tek Judge, Street Judge or someone who directed black ops -who knows, but plenty to explore there.
Secondly PJ is a psychopathic/sociopathic serial killer/mass murderer -as opposed to Sherman who never killed anyone.His genius had a very very different dynamic and thus would take a very different direction so, again, lots of potential I think.Plus there is a huge backstory to fill in there ,what did he accomplish -did he invent for example the Stub Gun, the possibilities are huge.
So yes, reviving this character would be very interesting

and very cool
